recensies: good product, very bright and easy to turn on/off but more tricky to control the level of light. you should touch and maintain the touch , then release the touch when the level is good to you. power use: 180mA at full level on USB. So any USB can do iit.

recensies: An UltraFire special. Very unique USB lamp. From high output to dim.
Very similar to NightCore's Tube keychain LED flashlight except this is limited to a USB port.
Six LEDs can kick out the lumens or dim to a nightlight.

recensies: Unique lamp. Totally variable output .Very similar to the "nitecore tube" key chain LED, except it needs to be attached to a USB port.
Can put out a lot of lumens to next to none from all six LEDS. Gives the ability for your device to become a lamp to a nightlight.